package com.wzh.mall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.sun.org.apache.xpath.internal.operations.Bool;
import com.wzh.common.constant.ProductConstant;
import com.wzh.common.to.SkuReductionTo;
import com.wzh.common.to.SpuBoundTo;
import com.wzh.common.to.es.SkuEsModel;
import com.wzh.common.utils.R;
import com.wzh.mall.product.dao.SpuInfoDescDao;
import com.wzh.mall.product.entity.*;
import com.wzh.mall.product.feign.CouponFeignService;
import com.wzh.mall.product.feign.SearchFeginService;
import com.wzh.mall.product.feign.WareFeignService;
import com.wzh.mall.product.service.*;
import com.wzh.mall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.wzh.common.utils.PageUtils;
import com.wzh.common.utils.Query;

import com.wzh.mall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;


    @Autowired
    SpuImagesService spuImagesService;


    @Autowired
    AttrService attrService;


    @Autowired
    ProductAttrValueService productAttrValueService;


    @Autowired
    SkuInfoService skuInfoService;


    @Autowired
    SkuImagesService skuImagesService;


    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeginService searchFeginService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    // TODO 完善
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1、保存spu基本信息 pms_sku_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.savaBaseSpuInfo(spuInfoEntity);
        // 2、保存spu的描述图片  pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);
        // 3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(),images);

        // 4、保存spu的规格参数 pms_product_attr_value

        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity byId = attrService.getById(attr.getAttrId());
            productAttrValueEntity.setAttrName(byId.getAttrName());
            productAttrValueEntity.setAttrValue(attr.getAttrValues());
            productAttrValueEntity.setQuickShow(attr.getShowDesc());
            productAttrValueEntity.setSpuId(spuInfoEntity.getId());

            return productAttrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);

        // 5、保存spu的所有sku信息

        // 5、保存spu的积分信息  sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode()!=0){
            log.error("远程保存spu积分信息失败!");
        }


        List<Skus> skusList=vo.getSkus();
        if (skusList!=null&&skusList.size()>0){
            skusList.forEach(item->{

                String defaultImg="";

                for (Images images1:item.getImages()) {
                    if (images1.getDefaultImg()==1){
                        defaultImg=images1.getImgUrl();
                    }
                }


                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);


                // 5.1 sku的基本信息 pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    // 返回true就是需要 返回false就是不需要
                    // 图片没有被选中就不需要保存在数据库中了
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //TODO 没有图片路劲的无需保存
                // 5.2 sku的图片信息 pms_sku_images


                skuImagesService.saveBatch(imagesEntities);

                // 5.3 sku的销售属性值  pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);

                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);


                // 5.4 sku的优惠满减信息  sms_sku_ladder
                //                      sms_sku_full_reduction
                //                      sms_member_price

                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount()>0||skuReductionTo.getFullPrice().compareTo(new BigDecimal("0"))==1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode()!=0){
                        log.error("远程保存sku优惠信息失败!");
                    }

                }


            });

        }
    }

    /**
      * @Description: 保存spu的基本信息
      * @Param: [spuInfoEntity]
      * @return: void
      * @Author: Mr.Wang
      * @Date: 2021/9/5
      * @Time: 10:42
      */      
      
    @Override
    public void savaBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId)&&"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId)&&"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catelog_id",catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params),
                wrapper);
        return new PageUtils(page);
    }

    /**
      * @Description: 商品的上架服务
      * @Param: [spuId]
      * @return: void
      * @Author: Mr.Wang
      * @Date: 2021/9/8
      * @Time: 8:33
      */      
      
    @Override
    public void up(Long spuId) {


        // 1、查出当前所有spuid所对应的所有sku信息 品牌的名字
        List<SkuInfoEntity> skus=  skuInfoService.getSkuBySpuId(spuId);
        // 获取所有skuid的集合
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4、查出当前sku的所有可以被检索的规格属性
        List<ProductAttrValueEntity> baseAttrlistforspu = productAttrValueService.baseAttrlistforspu(spuId);
        List<Long> attrIds = baseAttrlistforspu.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds=attrService.selectSearchAttrIds(attrIds);

        Set<Long> idSet=new HashSet<>(searchAttrIds);

        // 从baseAttrlistforspu中过滤出searchAttrIds中的属性信息

        List<SkuEsModel.Attrs> attrsList = baseAttrlistforspu.stream().filter(attr -> {
            return idSet.contains(attr.getAttrId());
        }).map((item) -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());
        // 发送远程调用，库存系统查询是否有库存 mall-ware
        Map<Long,Boolean> stockMap=null;
        try{
            R r = wareFeignService.getSkusHasStock(skuIdList);
            //
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {};
            stockMap=r.getData(typeReference).stream().collect(
                    Collectors.toMap(SkuHasStockVo::getSkuId,
                            item->item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务查询异常:原因{}",e);
        }


        // 2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map((sku) -> {
            // 组装我们需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esModel);
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            //TODO 1、发送远程调用，库存系统查询是否有库存 mall-ware
            // 设置库存信息
            if (finalStockMap ==null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分，0
            esModel.setHotScore(0L);

            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brandServiceById = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brandServiceById.getName());
            esModel.setBrandImg(brandServiceById.getLogo());

            CategoryEntity categoryServiceById = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(categoryServiceById.getName());
            //4、设置当前sku的所有可以被检索的规格属性
            esModel.setAttrs(attrsList);


            return esModel;
        }).collect(Collectors.toList());

        //TODO 5、发送给ES进行保存  mall-search

        R r = searchFeginService.productStatusUp(upProducts);

        if (r.getCode()==0){
            // 远程调用成功
            // TODO 6、修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());

        }else {
            // 远程调用失败
            // TODO 考虑一哈重复调用问题？即接口幂等性 重试机制？
            /*
            * Feign 的调用流程
            *   类：SynchronousMethodHandler
            *   1、构造请求数据，将对象转为JSON
            *       RequestTemplate template=buildTemplateFromArgs.create(argv);
            *   2、发送请求进行执行（执行成功回进行解码响应数据）
            *       excuteAndDecode(template);
            *   3、执行请求会有重试机制
            *      while(true){
            *           try{
            *                 excuteAndDecode(template);
            *           }catch{
            *                 try{
            *                     retryrer.continueOrPropagate(e);
            *
            *                 }catch{
            *                     throw ex;
            *                 }
            *           }
            *      }
            * */
        }
    }


}